Dental tray.



E. A. BROWN.

DENTAL TRAY.

APPLICATION FILED OCT. 26. 1915.

Patented May 15, 1917.

* ran EVAN A. BROWN, OF TACOMA, WASHINGTON.

DEnrAI. TRAY.

the following is a specification.

My invention relates to improvements in dental trays, and one of itsobjects is to provide a tray of oval form, whereby the tray may beaccommodated in a comparatively small amount of working space, while atthe same time presenting a comparatively larger amount of surface forsupporting the va rious instruments in spread out condition and withineasy reach of the operator.

A further object of the invention is to provide a removable tray whichwill be held securely in position upon a dental bracket table againstaccidental displacement, while it is readily removable after each dentaloperation for sterilization, etc.

A still further object of the invention is to provide a tray having abail handle which is curved on the same are as one of the longitudinalsides of the tray, so that when turned down to an inoperative positionit will be out of the way of the operator and at the same time willserve as a guard rail to prevent the instruments from falling upon thefloor.

The invention consists of the features of construction, combination andarrangement of parts herein fully described and claimed, reference beinghad to the accompanying drawing in which Figure 1 is a view in frontelevation of a combined table and tray embodying my invention.

Fig. 2 is a top plan view of the same.

Fig. 3 is a vertical longitudinal section along the line of. the majoraxis of the table and tray.

' Fi 4 is a vertical transverse section along the hue of the minor axisof the table and tray.

Fig. 5 is a vertical section through a portion of the table and the trayas shown in' Fig. 4.

n the illustrated disclosure of my invention, 1 designates a dentalbracket table in connection with which my improved dental tray 2 ispreferably used both the table and tray being made of oval orapproximately oval. form and of sheet-metal or other suitablematerialcapable of being readily and Specification of Letters Patent.

Patented May 15, rear.

Application filed October 26, 1915. Serial No. 58,001.

conveniently cleansed and sterilized. As shown, this table has a sidewall 5 extending upwardly above the plane of its top surface andprovided with a marginal rim portion 6 which surrounds said top surface.

The upstanding tray 2 is adapted to rest upon the upper surface of thetable within the space surrounded by the side wall 5, and is providedwith an upturned marginal flange 17 to bear against the marginal rim 6of the table, whereby accidental displacement of the tray from the tableis prevented. Preferably this flange 17 is formed or provlded with anoutwardly extending horizontal rim 18 to extend outward over thewall 5,thus providing a smooth marginal surface when the tray is in positionwhich prevents the passage of any dirt or foreign substance between theparts 5' and 18 and permits of instruments and. materials being movedover the surface of the rim .of the tray without interference. At theends of the tray are upstanding ears 19, to which are pivoted, as at 20,the ends of a bailshaped handle 21. This handle 21 is adapted to beturned upward to a vertical position to lie in vertical alinement withthe major axis of the tray, so as to permit the 'tray to be convenientlymanipulated and transported. The tray with the instruments restingthereon is thus adapted to be readily removed from the table after eachdental operation so that the tray and instruments may be sterilized, aswill be readily understood. The handle is curved on an are whichcoincides with that of the rim on one side ofthe longitudinal center ofthe tray, which portion of the rim-is provided with acentrally disposedlug or projection 22 forming a horizontal shoulder 23 and a vertical lip24 at the outer side of said shoulder. When the handle is turned down toan outof-the-way position when the tray is in use, it rests upon theshoulder 23 and against the lip 24 and is supported in 21.-substantiallyhorizontal position. In this position the handle forms a railing aroundone half, namely the rear half, of the tray which cooperates with theadjacent portion of the wall 5 to form a guard to prevent instruments ormaterials from falling ofi the tray at the rear end on to the floor.

The mode of use of the tray will be readily understood from theforegoing description, and it will be seen that the oval form of thetray provides an article of this character which may be disposed in acomparatively compact space and yet will give a major extent of surfacein close proximityto the dentist on which-instruments and materials maybe spread out with advantage and so as to be Within theconvenient reachof the dentist. At the end of each dental operation the handle may beelevated to a vertical position and the tray with its instruments liftedoff the table and conveyed to a proper point for sterilization. Otheradvantages of the invention will be apparent from the foregoingdescription.

I claim 1. A tray of oval-form having a marginal vertical Wallcomprising a vertical flange, a horizontal rim portion projectingoutwardly from the flange and an upstanding portion parallel with butoflset from the plane of the flange and connected therewith by saidhorizontal rimportion, and a handle pivotally mounted upon saidupstanding portion to fold down into the tray upon the inner side ofsaid portion so as to overhang said horizontal rim portion.

' 2. A tray of oval-form having an 1lpstanding marginal Wall, abail-shaped handle pivoted to said wall and of a form corresponding tothe form of the Wall at one the form of the marginal Wall at one side ofthe tray, and a supporting member projectin upwardly from said wall tohold the bail s ightly elevated above the bottom of the tray when turneddown to a horizontal position.

- In testimony whereof I aflix my signature in presence of twowitnesses.

EVAN A. BROWN.-

Witnesses:

C. E. MCFARLAND, H. A. MILLER.

